Because they risk running of being short squeezed in those stocks as well? Last time I check, big money isn't exactly throwing itself at airlines, mobile areas other than Android or iOS, and cinemas, even though two of those are bound to pick up later this year once covid is over and Black Berry is in talks with Baidu, which you can't ignore.

The big guys know all this, only they were hoping to short, make a profit, and then reinvest down the road when things picked back up, making even more money. WSB just capitalized on their strategy and now that they are losing, they are throwing a fit.